# RFix > RFix is a desktop-first RF signal simulation platform for visually composing > controlled RF scenarios, generating IQ data, inspecting results, and exporting > datasets and projects. The browser edition is a reduced online demo. Canonical site: https://rfix.ai/ Product: https://rfix.ai/product/ Validation: https://rfix.ai/validation/ Examples: https://rfix.ai/examples/ Product comparisons: https://rfix.ai/compare/ MCP integration: https://rfix.ai/product/#mcp Changelog: https://rfix.ai/changelog/ Contact: https://rfix.ai/contact/ ## Public wireless digital-twin demos - New York: https://rfix.ai/digital-twin?world=new-york - Strait of Hormuz: https://rfix.ai/digital-twin?world=hormuz - Kyiv: https://rfix.ai/digital-twin?world=kyiv - Mars: https://rfix.ai/digital-twin?world=mars These browser demos use frozen, precomputed propagation results and include downloadable sample IQ recordings with SigMF metadata. They do not run a live Sionna simulation in the browser. ## Capabilities - Node-based RF scenario and signal-chain composition. - Generated complex IQ data with scenario metadata and deterministic variants. - Spectrogram and time-domain analysis. - Raw IQ and SigMF-oriented export workflows. - Desktop-first optional ITU-R climatology and Sionna RT workflows. - Python/API and Model Context Protocol workflows for automation. - File-backed artifacts for large generated outputs. - Public wireless digital-twin examples with terrain-aware propagation views, spectra, link metrics, and sample IQ recordings. ## Important boundaries - The native desktop runtime is the primary product target. - The browser/Pyodide version is a secondary demo with reduced performance and capability. - A free RFix plan is available; optional licensed capabilities and client-only deployments are offered separately. - Optional SDR, Sionna RT, and ITU climatology features require compatible desktop runtimes or data packs. - Generated data should be validated against the downstream receiver, algorithm, or RFML acceptance criteria. ## Content use RFix permits search indexing, use as real-time AI input, and model training as declared in https://rfix.ai/robots.txt.